Involved in coordination and finetuning of motor

This is the end of the preview.
Sign up
to
access the rest of the document.

Unformatted text preview: brain. Involved in
coordination and finetuning of motor signals,
and motor learning. 21 Subcortical Structures: 22 Collections of brain cells that reside below the cerebral cortex - 3 Brainstem
Collective term for structures
between the thalamus and
the spinal cord, including the
midbrain, pons, and
medulla.
Major connecting area for
cranial nerves
(somatosensory info from
face, head, neck; auditory,
balance (vestibular) and taste
information, control of heart,
breathing and many other
bodily functions MIDBRAIN
PONS,
MEDULLA 3-D Views of Pons & Medulla
PONS (higher) MEDULLA (lower) 23 Subcortical Structures:
Collections of brain cells that
reside below the cerebral cortex - 4 Spinal Cord
Lowermost component of the CNS;
extends inside the vertebral column.
Transmits sensory and motor
information to and from the brain
Has different fiber tracts for sensory
and motor information
Segmented organization – a total of 31
pairs of spinal nerves carry sensory
and motor signals to and from the
spinal cord (responsible for entire body
below the neck)
Spinal nerves belong to the PNS 24 Summary Diagram of Cortical
and Subcortical Structures This is a medial view (looking out from the center) of the right brain hemisphere; the brainstem
includes the midbrain, pons, and medulla; it extends into spinal cord at lower margin. The
cerebellum is foliated (note the leaf-like folia in cross section) and wraps around brain stem. 25 26 General principles of sensory processing
All sensory systems share features regarding
how their inputs are processed:
They extract information on modality, location,
intensity, and duration.
Different sensory stimuli generate different
perceptual experiences due to the fact that
different brain structures and/or combinations of
brain structures are stimulated by each sensory
modality. 27 Sensory coding and modality representation
We have five major sensory modalities that can capture
the energy present in mechanical (touch, feeling,pain),
chemical (taste, smell, detection of noxious chemicals),
sound (auditory), and light (visual) stimuli. Anoth...
View
Full Document